#include<stdio.h>
int main()
{
    int i,j,k,m,n,l;
    printf("Input two FENSHU :\n");
    scanf("%d/%d,%d/%d",&i,&j,&k,&l);
    m=zxgb(j,l)/j*i;
    n=zxgb(j,l)/i*k;
    if(m>n)
    printf("%d/%d>%d%d\n",i,j,k,l);
    else if(m==n)
    printf("%d/%d=%d%d\n",i,j,k,l);
    else
    printf("%d/%d<%d%d\n",i,j,k,l);
    }
    zxgb(a,b)
    int a,b;
    {
        long int c;
        int d;
        if(a<b)c=a;a=b;b=c;
        for(c=a*b;b!=0;){
            d=b;b=a%b;a=d;
        }
        return ((int)c/a);
    }